Question

A 141mg sample was placed on a watch glass that has a mass of 9.203g. what is the mass of the watch glass and sample in grams?

Answer 1

Given the mass of sample placed on the watch glass = 141 mg

Converting mass of the sample from mg to g:

`141 mg * (1 g)/(1000 mg) =0.141 g`

Mass of watch glass = 9.203 g

So, the total mass of watch glass and the sample = 9.203 g +0.141 g = 9.344 g

Therefore, the mass of the watch glass and the sample in grams is 9.344 g